html {
    height: 100%;
}

body {
    height: 100%;
}

.container {
    position: relative;
    height: 100%;
    /* 渐变函数 */
    background-image: linear-gradient(to right, #fbc2ed, #a6c1ee);
}

.register-wrapper {
    background-color: white;
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 300px;
    height: 300px;
    border-radius: 10%;
    padding: 0 20px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.header {
    height: 50px;
    font-size: 20px;
    font-weight: 700;
    text-align: center;
    line-height: 50px;
}

.input-item {
    display: block;
    width: 100%;
    margin-bottom: 15px;
    border: 0;
    border-bottom: 1px solid rgb(128, 125, 125);
    padding: 10px;
    font-size: 15px;
    /* 移除浏览器默认聚焦样式 */
    outline: none;
}

button {
    cursor: pointer;
    text-align: center;
    width: 100%;
    height: 30px;
    line-height: 30px;
    margin: 15px 0;
    color: white;
    background-image: linear-gradient(to right, #fbc2ed, #a6c1ee);
    border-radius: 5px;
}

.msg {
    cursor: pointer;
    height: 10px;
    text-align: center;
    line-height: 10px;
}

.msg :hover {
    color: blue;
    text-decoration: underline;
}